Ahmed Abdul-Monem has Published 23 Articles

Linux Performance Monitoring with Vmstat and Iostat Commands

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 13:53:55

139 Views

Keeping a Linux system running smoothly requires vigilant monitoring of its performance. Two invaluable command-line utilities for this purpose are vmstat and iostat. These tools provide crucial insights into system-wide resource utilization, helping you identify bottlenecks and optimize performance. This comprehensive guide will explore these commands in detail, demonstrating how ... Read More

Screen Command Examples to Manage Linux Terminals

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 13:49:01

160 Views

In the world of Linux system administration and development, working with multiple terminal sessions is a common necessity. The screen command is a powerful terminal multiplexer that allows you to create, access, and manage multiple terminal sessions within a single window. This comprehensive tutorial will explore the screen command in ... Read More

Command Line Archive Tools for Linux

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 13:42:51

195 Views

Archiving and compressing the files is a fundamental task, whether for backups, software distribution, or simply organizing data. The command line offers a powerful and efficient way to handle archives. This comprehensive tutorial explores the most commonly used command-line archiving tools in Linux, including tar, gzip, bzip2, xz, and zip, ... Read More

How to Create a Linux Swap File?

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 12:39:07

140 Views

In Linux, swap space acts as an extension of your system's RAM. When your physical memory (RAM) is fully utilized, the operating system moves less frequently used data to the swap space, freeing up RAM for active processes. This can prevent your system from crashing or becoming unresponsive under heavy ... Read More

How to Configure sudo in Linux?

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 12:28:57

114 Views

sudo (SuperUser DO) is an indispensable tool in Linux, allowing authorized users to execute commands with root privileges. However, blindly granting sudo access can pose significant security risks. Properly configuring sudo is crucial to maintain a secure and manageable system. This comprehensive guide will explore the intricacies of configuring ... Read More

How is the Linux kernel tested?

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 12:17:18

287 Views

The Linux kernel is the heart of the Linux operating system, responsible for managing hardware resources and providing essential services to applications. Given its critical role, rigorous testing is paramount to ensure its stability, reliability, and security. This guide explores the multifaceted testing methodologies employed to safeguard the Linux kernel, ... Read More

How to Clear BASH Command Line History in Linux?

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 12:11:07

696 Views

The Bash command-line history is a powerful feature that allows you to easily recall and reuse previously executed commands. However, there are times when you might want to clear this history for privacy reasons, security concerns, or simply to start with a fresh slate. This comprehensive guide will explore various ... Read More

Testing and Debugging a Cron Job in Linux

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 11:50:35

679 Views

Cron jobs are essential for automating tasks on GNU/Linux systems, from backups and system maintenance to scheduled reports and data processing. However, setting up cron jobs correctly is only half the battle. Testing and debugging them is equally crucial to ensure they run as expected and don't introduce unexpected issues. ... Read More

Show Asterisks While Typing Sudo Password in Linux

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 11:32:19

120 Views

Security is paramount in any GNU/Linux environment. One common concern is the visibility of passwords, especially when using sudo. By default, when you type your password for sudo, nothing is displayed on the screen. This "blank" input is a security measure, but some users prefer to see asterisks (*) or ... Read More

Shell Initialization Files and User Profiles in Linux

Ahmed Abdul-Monem

Ahmed Abdul-Monem

Updated on 26-Mar-2025 10:43:40

173 Views

The power and flexibility of Linux is deeply intertwined in its shell environment. Understanding how shell initialization files and user profiles work is crucial for customizing your Linux experience and optimizing your work-flow. These files control everything from your command prompt appearance to the environment variables available to your shell ... Read More

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